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David PennistonAssociate ProfessorDepartment of Mathematics University of Wisconsin Oshkosh Oshkosh, WI 54901-8631 Office: 103 Swart Hall Phone: Fax: (920) 424-1812 Email: pennistd@uwosh.edu |
- The above picture of me was taken at the peak of Mount Zirkel in Colorado.
Curriculum vita
Spring 2013 schedule
- Math 206 @ 3:00, Math 742 @ 5:10
Help is available in the Mathematics Tutoring Lab
Notes for Math 349/549 (Number Theory)
Conferences and other activities
- In the summer of 2006 I worked with
the REU in
Computational Number Theory and Combinatorics at Clemson University.
Research Interests
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Number theory and arithmetic geometry. My areas of study include
modular forms, elliptic curves,
partitions, degeneration of curves and jacobians and K3 surfaces.
Recent Publications
- Congruences for l-regular partition functions
modulo 3
(with David Furcy), Ramanujan Journal 27 (2012), no. 1, 101-108.
- Average Frobenius distributions for elliptic curves
over abelian extensions
(with Neil Calkin, Bryan Faulkner, Kevin James and Matt King),
Acta Arithmetica 149 (2011), no. 3, 215-244.
- l-divisibility of l-regular partition functions
(with Brian Dandurand), Ramanujan Journal 19 (2009), no. 1, 63-70.
- Arithmetic properties of non-harmonic weak Maass forms
(with Kathrin Bringmann), Proceedings of the American Mathematical Society 137 (2009), 825-833.
- Divisibility properties of the 5-regular and 13-regular partition functions
(with Neil Calkin, Nate Drake, Kevin James, Shirley Law, Philip Lee and Jeanne Radder), Integers 8 (2008), no. 2, A60, 10pp.
- p-adic properties of Maass forms arising from theta series
(with Sharon Garthwaite), Mathematical Research Letters 15 (2008), no. 3, 459-470.
- Arithmetic of l-regular partition functions,
International Journal of Number Theory 4 (2008), no. 2, 295-302.
Education
- Ph.D. in Mathematics, University of Georgia, 1998.
- M.S. in Physics, University of Michigan, 1991.
- B.S. in Physics and Mathematics, University of Wisconsin, 1990.
Other interests
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I enjoy most sports, including tennis, cross country skiing,
rollerblading, ultimate frisbee,
mountain biking
and running. I have run the New York City Marathon, skated the North Shore Inline Marathon,
and skied the American Birkebeiner.
I am currently in the process of hiking the Appalachian Trail, section by section.
So far I have hiked from the trailhead at Springer Mountain in Georgia to Hanover, New Hampshire,
about 1730 miles. My all-time favorite hike is the Wonderland Trail, which I would recommend
highly to anyone who loves hiking, and here are pictures from two that are not far behind:
the Four Pass Loop and the Teton Crest Trail.
For a flat state Wisconsin offers some excellent mountain biking. In particular, Kettle Moraine State Park
has the Greenbush trail system in its north unit and the John Muir and Emma Carlin trails in the south. If you
are looking for a place to ride in the Fox Valley, I would recommend Brown County Reforestation Camp.